Sindri alters Atreus' Yggdrasil key with a single tap of his hammer, and Freyr notes that Lunda one made breast-plate armour made of dog barks.
The Stags of the Four Seasons are theorized to have evolved from the primordial dwarves who embodied the winds.
The Mask contains (or is the key to) infinite knowledge.
The reason why Thor doesn't fly Atreus everywhere is because he doesn't want to.
In Niflheim, we see the bones of some massive creature.
Sigrun is desribed as being the most lethal enemy faced by Kratos & Atreus in their prior adventures.
Slaghorn likes burrowing underground.
Draupnir is desribed as being able to duplicate itself an infinite number of times.
The Rond of the Nine Realms can cause time to shift as it contains sap from Yggdrasil.
Travellers are sent to explore the Nine Realms and beyond.
Yggdrasil is implied to hav a will of its own by Ratotoskr, who was on an ordinary squirrel.
Kratos and Thors' clash created a considerable crater of ice.
There is a Realm Tear where you fought Thor the first time